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Finding the Fourth Proportional to 25,363.80, 38,013.30 and 19,491.30

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Solution

The fourth proportional to 25,363.80, 38,013.30 and 19,491.30 is: 29,212.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,363.80 : 38,013.30 = 19,491.30 : x
  2. Step 2: Convert to fraction form
    25,363.80/38,013.30 = 19,491.30/x
  3. Step 3: Cross multiply
    25,363.80x = 38,013.30 × 19,491.30
  4. Step 4: Simplify right side
    25,363.80x = 740,928,634.29
  5. Step 5: Solve for x
    x = 740,928,634.29/25,363.80
  6. Step 6: Final answer
    x = 29,212.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.